Home / 111,725.10-154,154.88-69,263.28

Finding the Fourth Proportional to 111,725.10, 154,154.88 and 69,263.28

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Solution

The fourth proportional to 111,725.10, 154,154.88 and 69,263.28 is: 95,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,725.10 : 154,154.88 = 69,263.28 : x
  2. Step 2: Convert to fraction form
    111,725.10/154,154.88 = 69,263.28/x
  3. Step 3: Cross multiply
    111,725.10x = 154,154.88 × 69,263.28
  4. Step 4: Simplify right side
    111,725.10x = 10,677,272,616.81
  5. Step 5: Solve for x
    x = 10,677,272,616.81/111,725.10
  6. Step 6: Final answer
    x = 95,567.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.